Henry benjamin



HENRY BENJAMIN, OF MONTREAL, CANADA, ASSIGNOR OF ONE-HALF TO FREDERICK l3. WELLS, OF SAME PLACE.

CQMPOSITION FQR ROADWAYS, 84,0.

SPECIFICATION forming part of Letters Patent No. 143,953, dated December 30, 1890.

Application filed February 5 1890. Serial No. 339,227. (No specimens.)

To all whom it may concern:

Be it known that I, HENRY BENJAMIN, of the city of Montreal, in the district of Montreal and Province of Quebec, Canada, have invented a new and Improved Composition for Roadways, Fire-Proof Roofing, and other Building Purposes, of which the following is a full, clear, and exact description.

My invention consists of a composition of matter, mainly designed for roadways, sidewalks, fire-proof roofing, vault-linings, and various buildingand otherpurposes, the same having for its ingredients finely-divided iron particles and a bituminous substance, substantially as hereinafter described.

I take, for instance, finely-divided particles of iron or iron oresuch as the waste prod ucts from iron mines or iron sandand mix the same with a bituminous substance, such as ordinary natural asphalt orthe asphalt of commerce, orother equivalei'itmaterial possessing like qualities and serving as a matrixfor the iron particles. These ingredients are to be thoroughly mixed and incorporated together by heat to bring the mass to a plastic or pasty consistency, and are usually designed to be applied while hot to the surface which the composition is intended to cover, the covering or coating thus applied being of any desired thickness, according to the requirement of the work. Rollers or any other suitable pressure means may be employed in laying down roadways and sidewalks with the composition; and in the case of roofing and vaultlinings the composition may be floated on.

In using this composition on roofs I prefer to add a finely-pulverized coating of ground plumbago or mica, so as to render it entirely fireproof.

The composition when reduced to a semiliquid condition may be used for grontin g between stone orwooden paving-blocks for streetroadways. \Vhen pressed into blocks it can be very durably and advantageously employed in submarine works, such as bridgepiers, and also for other building purposes.

It will be impossible for me to confine myself to any exact relative proportions of the ingredients named, but the-following statement will serve to explain what variations may be made. Thus when great resistance is requiredas, for instance, when the composition is used for a roadway subjected to heavy traffic, the proportion of the iron particles may be the largest; but in such case I prefer to use about equal quantities, or thereabout, by weight, of the iron particles and.

HENRY BENJAMIN.

\Vitnesses:

F. B. MGNAMEE, W. G. TURNER. 

